CN106775451A - A kind of method and device for processing logical volume - Google Patents
A kind of method and device for processing logical volume Download PDFInfo
- Publication number
- CN106775451A CN106775451A CN201611034484.7A CN201611034484A CN106775451A CN 106775451 A CN106775451 A CN 106775451A CN 201611034484 A CN201611034484 A CN 201611034484A CN 106775451 A CN106775451 A CN 106775451A
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- Prior art keywords
- volume
- order
- finding
- logical volume
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
- G06F3/0659—Command handling arrangements, e.g. command buffers, queues, command scheduling
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0662—Virtualisation aspects
- G06F3/0665—Virtualisation aspects at area level, e.g. provisioning of virtual or logical volumes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
Abstract
The invention discloses a kind of method and device for processing logical volume, to the quick, logical volume neatly found in system.The method includes：The first order for the physical volume in lookup system is obtained, first order is performed, judges whether to find the physical volume in system；If the physical volume in finding system, the second order for the volume group in lookup system is obtained, and based on the physical volume in the system for finding, perform second order, judge whether to find the volume group in system；If the volume group in finding system, the 3rd order for the logical volume in lookup system is obtained, and based on the volume group in the system for finding, perform the 3rd order, find the logical volume in system.
Description
Technical field
The present invention relates to Computer Applied Technology field, more particularly to a kind of method and device for processing logical volume.
Background technology
Linux LVM (Logical Volume Manager, logical volume management) be organized as PV (Physical Volume,
Physical volume), VG (Volume Group, volume group) and LV (Logical Volume, logical volume).Physical volume can be one complete
Hard disk, or hard disk in certain subregion, any logical volume and volume group are set up on the basis of physical volume.Volume group
Set up on physical volume, a volume group can be comprising a physical volume or multiple physical volumes.Logical volume is set up on volume group,
The space of volume group may be used to create multiple logical volumes, and the logical volume for creating can be with being intended to increase in the spatial dimension of volume group
Subtract, the use of logical volume is equivalent to physical disk subregion, it is possible to which a kind of characteristic for being referred to as snapshot, Ke Yi are realized by LVM
Snapshot is created on the premise of not stopping production environment, to realize the data backup at a certain moment.
In the system of CentOS 5 (x86), the storage of HP EVA 8000 is accessed by optical switch, because to utilize
Multipath function, so being mounted with the driver that HP is provided.Find that kernel has been also carried out updating during more new system, do not account for
Driver is installed to for new kernel, system has directly been restarted, discovery system can not find fiber reel, automatically into single user
Just remember during pattern.Enter under single user mode, mount/-o rw, remount are performed, by file system again mount
It is read-write state, is that new kernel installs driver, then restarting systems, at this time finds that original logical volume all loses
, thus, it would be highly desirable to solve this problem.
The content of the invention
The present invention provides a kind of method and device for processing logical volume, quickly, neatly to find patrolling in system
Collect volume.
The present invention provides a kind of method for processing logical volume, including：
The first order for the physical volume in lookup system is obtained, first order is performed, judges whether to find
Physical volume in system；
If the physical volume in finding system, the second order for the volume group in lookup system is obtained, and based on looking into
Physical volume in the system for finding, performs second order, judges whether to find the volume group in system；
If the volume group in finding system, the 3rd order for the logical volume in lookup system is obtained, and based on looking into
Volume group in the system for finding, performs the 3rd order, finds the logical volume in system.
In an embodiment of the present invention, based on the physical volume in the system for finding, second order is performed, including：
Physical volume in the system that will be found performs second life as the specified parameter in the described second order
Order, the specified parameter is used to determine the physical volume in system to be read.
In an embodiment of the present invention, first order includes pvscan orders, and second order includes vgscan
Order, the 3rd order includes lvscan orders.
In an embodiment of the present invention, after the logical volume in finding system, methods described also includes：
Whether the logical volume in the system that judgement finds can use；
If it is not, then performing the activation instruction of activation logical volume so that the state of the logical volume in the system for finding is can
With.
In an embodiment of the present invention, the activation instruction is instructed including lvchange.
The present invention also provides a kind of device for processing logical volume, including：
First processing module, for obtaining the first order for the physical volume in lookup system, performs first life
Order, judges whether to find the physical volume in system；
Second processing module, if for finding the physical volume in system, obtaining for the volume group in lookup system
Second order, and based on the physical volume in the system for finding, perform second order, in judging whether to find system
Volume group；
3rd processing module, if for finding the volume group in system, obtaining for the logical volume in lookup system
3rd order, and based on the volume group in the system for finding, the 3rd order is performed, find the logical volume in system.
In an embodiment of the present invention, the Second processing module is additionally operable to：
Physical volume in the system that will be found performs second life as the specified parameter in the described second order
Order, the specified parameter is used to determine the physical volume in system to be read.
In an embodiment of the present invention, first order includes pvscan orders, and second order includes vgscan
Order, the 3rd order includes lvscan orders.
In an embodiment of the present invention, described device also includes：
Active module, for finding system in the 3rd processing module in logical volume after, judgement finds
Whether the logical volume in system can use；If it is not, then performing the activation instruction of activation logical volume so that patrolling in the system for finding
It is available to collect the state of volume.
In an embodiment of the present invention, the activation instruction is instructed including lvchange.
In embodiments of the present invention, the first order for the physical volume in lookup system is obtained, first life is performed
Order, judges whether to find the physical volume in system；If the physical volume in finding system, obtain in lookup system
Second order of volume group, and based on the physical volume in the system for finding, perform second order, judges whether to find and is
Volume group in system；If the volume group in finding system, the 3rd order for the logical volume in lookup system is obtained, and be based on
Volume group in the system for finding, performs the 3rd order, finds the logical volume in system.As can be seen here, the present invention is real
Apply example can realize quickly, the purpose of the logical volume neatly found in system.
Other features and advantages of the present invention will be illustrated in the following description, also, the partly change from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
Specifically noted structure is realized and obtained in book, claims and accompanying drawing.
Below by drawings and Examples, technical scheme is described in further detail.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, with reality of the invention
Applying example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the flow chart of the method for the treatment of logical volume in one embodiment of the invention；
Fig. 2 is the flow chart of the method for the treatment of logical volume in another embodiment of the present invention；
Fig. 3 is the structural representation of the device for the treatment of logical volume in one embodiment of the invention；And
Fig. 4 is the structural representation of the device for the treatment of logical volume in another embodiment of the present invention.
Specific embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
As shown in Figure 1 to process the flow chart of the method for logical volume in one embodiment of the invention, the method can include with
Lower step S11-S13.
Step S11, obtains the first order for the physical volume in lookup system, performs first and orders, and judges whether to look into
Find the physical volume in system.
In this step, the first order can be such as pvscan orders, can be in lookup system using the pvscan orders
Physical volume.
Step S12, if the physical volume in finding system, obtains the second order for the volume group in lookup system,
And based on the physical volume in the system for finding, perform second and order, judge whether to find the volume group in system.
In this step, the second order can be such as vgscan orders, can be in lookup system using the vgscan orders
Volume group.Specifically, the physical volume in the system that will be found performs second and orders as the specified parameter in the second order, this
In specified parameter be used for the physical volume for determining in system to be read.
Step S13, if the volume group in finding system, obtains the 3rd order for the logical volume in lookup system,
And based on the volume group in the system for finding, perform the 3rd and order, find the logical volume in system.
In this step, the 3rd order can be such as lvscan orders, can be in lookup system using the lvscan orders
Logical volume.
In embodiments of the present invention, the first order for the physical volume in lookup system is obtained, first life is performed
Order, judges whether to find the physical volume in system；If the physical volume in finding system, obtain in lookup system
Second order of volume group, and based on the physical volume in the system for finding, perform second order, judges whether to find and is
Volume group in system；If the volume group in finding system, the 3rd order for the logical volume in lookup system is obtained, and be based on
Volume group in the system for finding, performs the 3rd order, finds the logical volume in system.As can be seen here, the present invention is real
Apply example can realize quickly, the purpose of the logical volume neatly found in system.
In alternative embodiment of the invention, after the logical volume during above step S13 finds system, can also sentence
Whether the logical volume in the disconnected system for finding can use, if unavailable, perform the activation instruction of activation logical volume so that search
To system in the state of logical volume be available.Here activation instruction can be lvchange instructions.
The implementation process of the method for the treatment of logical volume of the invention is discussed in detail below by a specific embodiment.At this
In embodiment, such as mentioned in background technology, entered under single user mode, mount/-o rw, remount are performed, by file system
Again mount is read-write state to system, is that new kernel installs driver, and then restarting systems, at this time find original
Logical volume all disappears.Now, performing fdisk orders can find disk.
The flow chart of the method for the treatment of logical volume in another embodiment of the present invention is illustrated in figure 2, the method can include
Following steps S21-S25.
Step S21, obtains the first order for the physical volume in lookup system, performs first and orders, and judges whether to look into
Find the physical volume in system.
In this step, the first order can be such as pvscan orders, can be in lookup system using the pvscan orders
Physical volume, specific code is as follows：
[root@csahost~] #pvscan
PV/dev/sdg1 VG VolumeGroupData3 lvm1[999.94GB/0free]
Total:1[999.94GB]/in use:1[999.94GB]/in no VG:0[0]
[root@csahost~] #pvdisplay
Step S22, if the physical volume in finding system, obtains the second order for the volume group in lookup system.
In this step, the second order can be such as vgscan orders, volume group that can be in lookup system using the vgscan orders.
Step S23, the physical volume in the system that will be found performs second and orders as the specified parameter in the second order
Order, specified parameter here is used to determine the physical volume in system to be read.
In this step, specific code is as follows：
[root@csahost~] #vgscan
Reading all physical volumes.This may take a while...
Found volume group"VolumeGroupData3"using metadata type lvm1
[root@csahost~] #vgdisplay
Step S24, if the volume group in finding system, obtains the 3rd order for the logical volume in lookup system,
And based on the volume group in the system for finding, perform the 3rd and order, find the logical volume in system.
In this step, the 3rd order can be such as lvscan orders, can be in lookup system using the lvscan orders
Logical volume, specific code is as follows：
[root@csahost~] #lvscan
inactive'/dev/VolumeGroupData3/LogVolData3'[999.94GB]normal
[root@csahost~] #lvdisplay
But at this moment the state of logical volume is unavailable：LV Status NOT available
Step S25, performs the activation instruction of activation logical volume so that the state of the logical volume in the system for finding is can
With.
In this step, activation instruction can be lvchange instructions, it is possible to use order lvchange-ay name
To change the state of logical volume, wherein name is the title of logical volume.
Afterwards, restarting systems, discovery system automatically identifies original logical volume, and state also revert to can
With.At this moment mount this documents system, recovers normal.As a result all it is normal using order fsck come inspection system disk.
It should be noted that in actual applications, above-mentioned all optional embodiments can be any by the way of combining
Combination, forms alternative embodiment of the invention, and this is no longer going to repeat them.
Method corresponding to logical volume is processed in above-described embodiment, the present invention also provides a kind of device for processing logical volume.
The structural representation of the device for the treatment of logical volume in one embodiment of the invention is illustrated in figure 3, including：
First processing module 31, for obtaining the first order for the physical volume in lookup system, performs described first
Order, judges whether to find the physical volume in system；
Second processing module 32, if for finding the physical volume in system, obtaining for the volume group in lookup system
The second order, and based on the physical volume in the system for finding, second order is performed, in judging whether to find system
Volume group；
3rd processing module 33, if for finding the volume group in system, obtaining for the logical volume in lookup system
The 3rd order, and based on the volume group in the system for finding, perform the 3rd order, find the logical volume in system.
In an embodiment of the present invention, the Second processing module 32 is additionally operable to：
Physical volume in the system that will be found performs second life as the specified parameter in the described second order
Order, the specified parameter is used to determine the physical volume in system to be read.
In an embodiment of the present invention, first order includes pvscan orders, and second order includes vgscan
Order, the 3rd order includes lvscan orders.
In an embodiment of the present invention, as shown in figure 4, the device of figure 3 above displaying can also include：
Active module 41, for finding system in the 3rd processing module in logical volume after, judge to find
System in logical volume whether can use；If it is not, then performing the activation instruction of activation logical volume so that in the system for finding
The state of logical volume is available.
In an embodiment of the present invention, the activation instruction is instructed including lvchange.
The said apparatus of the embodiment of the present invention：Public key and its corresponding private key are created on the client；The institute that will be created
State public key and be uploaded to remote server；When the client needs to log in the remote server, to the remote server
The logging request comprising the private key is sent, to be carried out using the private key and the public key on this remote server
Match somebody with somebody, complete to log in when the match is successful.As can be seen here, the embodiment of the present invention can realize quickly, neatly carry out Telnet
Purpose.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can be using the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.And, the present invention can be used and wherein include the computer of computer usable program code at one or more
The shape of the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram are described.It should be understood that every first-class during flow chart and/or block diagram can be realized by computer program instructions
The combination of flow and/or square frame in journey and/or square frame and flow chart and/or block diagram.These computer programs can be provided
The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced for reality by the instruction of computer or the computing device of other programmable data processing devices
The device of the function of being specified in present one flow of flow chart or multiple one square frame of flow and/or block diagram or multiple square frames.
These computer program instructions may be alternatively stored in can guide computer or other programmable data processing devices with spy
In determining the computer-readable memory that mode works so that instruction of the storage in the computer-readable memory is produced and include finger
Make the manufacture of device, the command device realize in one flow of flow chart or multiple one square frame of flow and/or block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented treatment, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Obviously, those skilled in the art can carry out various changes and modification without deviating from essence of the invention to the present invention
God and scope.So, if these modifications of the invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (10)
1. it is a kind of process logical volume method, it is characterised in that including：
The first order for the physical volume in lookup system is obtained, first order is performed, judges whether to find system
In physical volume；
If the physical volume in finding system, the second order for the volume group in lookup system is obtained, and based on finding
System in physical volume, perform it is described second order, judge whether to find the volume group in system；
If the volume group in finding system, the 3rd order for the logical volume in lookup system is obtained, and based on finding
System in volume group, perform it is described 3rd order, find the logical volume in system.
2. method according to claim 1, it is characterised in that based on the physical volume in the system for finding, performs described
Second order, including：
Physical volume in the system that will be found performs second order, institute as the specified parameter in the described second order
State the physical volume that specified parameter is used to determine in system to be read.
3. method according to claim 1, it is characterised in that first order includes pvscan orders, described second
Order includes vgscan orders, and the 3rd order includes lvscan orders.
4. method according to claim 1, it is characterised in that after the logical volume in finding system, methods described
Also include：
Whether the logical volume in the system that judgement finds can use；
If it is not, then performing the activation instruction of activation logical volume so that the state of the logical volume in the system for finding is available.
5. method according to claim 4, it is characterised in that the activation instruction includes lvchange instructions.
6. it is a kind of process logical volume device, it is characterised in that including：
First processing module, for obtaining the first order for the physical volume in lookup system, performs first order, sentences
The disconnected physical volume whether found in system；
Second processing module, if for finding the physical volume in system, obtaining second for the volume group in lookup system
Order, and based on the physical volume in the system for finding, second order is performed, judge whether to find the volume in system
Group；
3rd processing module, if for finding the volume group in system, obtaining the 3rd for the logical volume in lookup system
Order, and based on the volume group in the system for finding, the 3rd order is performed, find the logical volume in system.
7. device according to claim 6, it is characterised in that the Second processing module is additionally operable to：
Physical volume in the system that will be found performs second order, institute as the specified parameter in the described second order
State the physical volume that specified parameter is used to determine in system to be read.
8. device according to claim 6, it is characterised in that first order includes pvscan orders, described second
Order includes vgscan orders, and the 3rd order includes lvscan orders.
9. device according to claim 6, it is characterised in that also include：
Active module, for finding system in the 3rd processing module in logical volume after, the system that finds of judgement
In logical volume whether can use；If it is not, then performing the activation instruction of activation logical volume so that the logical volume in the system for finding
State be available.
10. device according to claim 9, it is characterised in that the activation instruction includes lvchange instructions.
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| CN201611034484.7A CN106775451A (en) | 2016-11-16 | 2016-11-16 | A kind of method and device for processing logical volume |
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| CN201611034484.7A CN106775451A (en) | 2016-11-16 | 2016-11-16 | A kind of method and device for processing logical volume |
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| CN201611034484.7A Withdrawn CN106775451A (en) | 2016-11-16 | 2016-11-16 | A kind of method and device for processing logical volume |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107506141A (en) * | 2017-08-18 | 2017-12-22 | 郑州云海信息技术有限公司 | A kind of storage system is to volume group state automatic decision and the method and system of activation |
| CN110532032A (en) * | 2019-07-31 | 2019-12-03 | 华为技术有限公司 | A kind of booting file system detection method and relevant device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107506141A (en) * | 2017-08-18 | 2017-12-22 | 郑州云海信息技术有限公司 | A kind of storage system is to volume group state automatic decision and the method and system of activation |
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